Članak rekapitulira postojeće i donosi brojne nove podatke o dagerotipijskoj djelatnosti u Zagrebu sredinom devetnaestoga stoljeća. Slijedom napisa objavljenih u onodobnim novinama rekonstruira se ozračje dolaska novoga izuma u Zagreb 1839. godine kao i razina spoznaje o ovome ranome fotografskom procesu u hrvatskome društvu. Posebna je pozornost poklonjena Demetru Novakoviću, prvomu hrvatskom dagerotipistu koji je, po svemu sudeći, poduku za izradu dagerotipija dobio izravno u Parizu u vrijeme javne demonstracije procesa. Rad ostalih praktičara – uglavnom putujućih dagerotipista – koji su djelovali u glavnome hrvatskom gradu ocrtan je na temelju podataka dostupnih kroz novinske oglase i nešto literature. Među njima valja istaknuti Johanna Boscha, predstavnika takozvane Bečke škole dagerotipije te Ferdinanda Rahmanna i Josepha Kallaina, čije rivalstvo i nadmetanje u kvaliteti izrade dagerotipija predstavlja prvi zabilježeni primjer fotografske konkurencije na hrvatskome prostoru., This paper summarizes the existing and brings numerous new data on daguerreotypy in Zagreb in the mid-19th century. Based on various articles published in the periodicals of the time, the author evokes the atmosphere around the arrival of this invention in Zagreb (1839) and reconstructs the level of knowledge about this early photographic process in the Croatian society. A particular focus has been placed on Demetar Novaković, the first Croatian daguerreotypist, who most probably acquired this technique during his stay in Paris at the time when the process was publicly demonstrated. The work of other daguerreotypists active in the Croatian capital – mostly travelling from place to place – has been outlined based on the information available through newspaper ads and scholarly literature. They notably include Johann Bosch, a representative of the so-called Vienna school of daguerreotypy, as well as Ferdinand Rahmann and Joseph Kallain, whose rivalry and competition in the quality of daguerreotyping is the first recorded example of photographic competition in Croatia.